8197064847 has 24 divisors (see below), whose sum is σ = 11904027200. Its totient is φ = 5435304768.

The previous prime is 8197064809. The next prime is 8197064849. The reversal of 8197064847 is 7484607918.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8197064847 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8197064793 and 8197064802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197064849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3438618 + ... + 3441000.

Almost surely, 2^8197064847 is an apocalyptic number.

8197064847 is a deficient number, since it is larger than the sum of its proper divisors (3706962353).

8197064847 is a wasteful number, since it uses less digits than its factorization.

8197064847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287 (or 4284 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 8197064847 is about 90537.6432595857. The cubic root of 8197064847 is about 2016.2890439388.

The spelling of 8197064847 in words is "eight billion, one hundred ninety-seven million, sixty-four thousand, eight hundred forty-seven".